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单词 sphene
释义 sphene
\ˈsfēn\ noun
(-s)
Etymology: French sphène, from Greek sphēn wedge; from a form of its crystals
: a mineral CaTiSiO5 that is a silicate of calcium and titanium, and often contains columbium, chromium, fluorine, and other elements — called also titanite
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更新时间:2024/12/24 2:10:28